5/4 or 5: 4
1) Let's turn both units into one so that we can simplify it
1 ft ----------------- 12 "
x 30"
12x=30*1
x=5/2 or 2.5 ft
2) Now let's write the ratio on the same unit:
[tex]\frac{\frac{5}{2}}{2}=\frac{5}{2}\times\frac{1}{2}=\frac{5}{4}[/tex]3) So the ratio, simplified is 5/4 or 5: 4